Asphalt pavement self-drainage structure
By laying a layer of crushed stone and an asphalt layer on top of a cement layer, and combining it with drainage channels, permeable bricks and drainage pipes, the problem of poor drainage after the cement road surface is converted to an asphalt road surface is solved, achieving efficient rainwater discharge and improved traffic safety.
Patent Information
- Application Number
- CN202520202835.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Even after existing cement pavements are converted to asphalt pavements, the drainage effect remains poor. Furthermore, laying asphalt pavements directly on cement pavements is costly and it is difficult to improve drainage performance without damaging the original structure.
A crushed stone layer and an asphalt layer are laid on the cement layer, and a main drainage channel is set on both sides of the crushed stone layer. Utilizing the permeability of the crushed stone layer and the design of the permeable bricks, combined with drainage outlets, drainage pipes and perforated mesh, a self-draining structure is formed, and rainwater is collected into the main drainage channel through infiltration and flow.
Without damaging the original cement layer, it significantly improves rainwater drainage, reduces rainwater accumulation on the asphalt layer, and enhances road drainage performance and traffic safety.
Smart Images
Figure CN223805363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road engineering technology, and more specifically to a self-draining structure for asphalt pavement. Background Technology
[0002] Asphalt pavement is a road surface that uses asphalt as a binder and is widely used in highways, urban roads, and parking lots. It has many advantages, including good smoothness, low noise, strong water resistance, convenient construction, and high fatigue resistance.
[0003] According to patent publication number CN217651544U, published on 2022-10-25, an asphalt pavement structure with fatigue resistance and self-drainage functions is disclosed, including a base layer, a base course laid on top of the base layer, a fatigue resistance layer laid on top of the base course, a sub-support layer laid on top of the fatigue resistance layer, a surface layer laid on top of the sub-support layer, and drainage ditches equidistantly formed on the upper surface of the sub-support layer along the length of the pavement.
[0004] In the prior art, including the aforementioned patents, most newly constructed roads currently use asphalt pavement. This involves laying permeable materials such as permeable slag layers on the newly excavated foundation, and using permeable asphalt, resulting in good drainage. However, some urban roads were initially planned with cement pavement. While cement pavement is inexpensive, it has poor drainage, is prone to cracking, and has a short lifespan. Excavating and removing the cement pavement to repave with asphalt is costly. While laying asphalt directly on top of the cement pavement improves road smoothness and fatigue resistance, the original cement pavement still obstructs drainage, resulting in poor overall drainage. Utility Model Content
[0005] The purpose of this invention is to provide a self-draining structure for asphalt pavement to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an asphalt pavement self-drainage structure, including a base course and a brick layer and a cement layer arranged thereon in sequence, and also including a crushed stone layer laid above the cement layer and an asphalt layer laid above the crushed stone layer, wherein the crushed stone layer extends to both sides of the asphalt layer, the brick layer and the cement layer, and a main drainage channel is provided on both sides of the crushed stone layer.
[0007] Preferably, the crushed stone layer is paved with multiple pedestrian bricks on both sides of the asphalt layer, and a curbstone is provided on the side of the pedestrian bricks opposite to the asphalt layer.
[0008] Preferably, the top of the pedestrian brick is provided with a curved surface, and the curved surfaces of multiple pedestrian bricks are spliced together.
[0009] As preferred, multiple drainage openings are equidistantly distributed among the multiple pedestrian bricks, and a first partition is arranged on the drainage openings.
[0010] As preferred, a drainage pipe is fixedly connected to the drainage openings, and one end of the drainage pipe extends into the main drainage groove.
[0011] As preferred, a water leakage mesh is arranged on one side of the main drainage groove, and a second partition is arranged on the main drainage groove.
[0012] As preferred, the gravel layer is arranged on the foundation layer.
[0013] As preferred, the pedestrian brick is a water-permeable brick.
[0014] As preferred, the asphalt layer is a water-permeable asphalt.
[0015] As preferred, the main drainage groove is a stainless steel drainage groove.
[0016] In the above technical solution, the asphalt pavement self-drainage structure has the following advantages: the gravel layer and the asphalt layer are arranged on the original cement layer, rainwater is partially penetrated when falling on the asphalt layer, and is drained along the cement layer to both sides through the penetration of the gravel layer, and the rainwater on the asphalt layer is drained to both sides and flows into the main drainage groove through the gravel layers on both sides of the asphalt layer, thereby guiding the rainwater to flow into the main drainage groove without damaging the original cement layer, improving the drainage effect of the rainwater, and reducing the problem of difficult drainage of the rainwater accumulated on the asphalt layer. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art based on these drawings.
[0018] Figure 1 The overall cross-sectional structure schematic diagram provided by the embodiments of the present application;
[0019] Figure 2 The partial cross-sectional structure schematic diagram provided by the embodiments of the present application;
[0020] Figure 3 The A place enlarged structure schematic diagram provided by the embodiments of the present application;
[0021] Figure 4 The B place enlarged structure schematic diagram provided by the embodiments of the present application.
[0022] Reference signs:
[0023] 1, foundation layer; 2, gravel layer; 3, pedestrian brick; 4, curb plate; 5, main drainage groove; 6, drainage port; 11, broken brick layer; 12, cement layer; 21, asphalt layer; 51, second partition frame; 52, water leakage mesh; 61, first partition frame; 62, drainage pipe. DETAILED DESCRIPTION
[0024] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.
[0025] As shown in the drawings, an asphalt pavement self-drainage structure comprises a foundation layer 1 and a broken brick layer 11 and a cement layer 12 arranged in sequence thereon, further comprises a gravel layer 2 laid on the cement layer 12 and an asphalt layer 21 laid on the gravel layer 2, the gravel layer 2 extends out of both sides of the asphalt layer 21, the broken brick layer 11 and the cement layer 12, and the both sides of the gravel layer 2 are respectively provided with a main drainage groove 5. Figures 1-4 By laying the gravel layer 2 and the asphalt layer 21 on the original cement layer 12, when the rainwater falls on the asphalt layer 21, it is partially penetrated, and the penetration along the cement layer 12 towards both sides is drained through the gravel layer 2, while part of the rainwater on the asphalt layer 21 is discharged to both sides and flows into the main drainage groove 5 through the gravel layer 2 on both sides of the asphalt layer 21, thereby guiding the rainwater to flow into the main drainage groove 5 without damaging the original cement layer 12, thereby improving the drainage effect of the rainwater and reducing the problem that the rainwater is difficult to discharge due to accumulation on the asphalt layer 21.
[0026] As further provided by the utility model, a plurality of pedestrian bricks 3 are laid on both sides of the asphalt layer 21, and the curb plate 4 is arranged on one side of the asphalt layer 21 opposite the pedestrian brick 3.
[0027] Specifically, as shown in the drawings, the curb plate 4 is inserted into the gravel layer 2, and the pedestrian brick 3 and the curb plate 4 are used to support and limit the asphalt layer 21, and the curb plate 4 clearly defines the road boundary and prevents vehicles from driving off the road during turning or driving, thereby improving traffic safety. Figure 1 Further, the top of the pedestrian brick 3 is provided with a curved surface part, and the curved surface parts of the plurality of pedestrian bricks 3 are mutually spliced.
[0028] Specifically, the plurality of pedestrian bricks 3 are spliced and laid, and the curved surface parts of the plurality of pedestrian bricks 3 are mutually spliced, and the rainwater flowing along the asphalt layer 21 into the curved surface parts is guided to flow and drain under the cooperation of the plurality of curved surface parts.
[0029]
[0030] Further, a plurality of drainage openings 6 are equidistantly distributed between the plurality of pedestrian bricks 3, and a first partition 61 is arranged on the drainage openings 6.
[0031] Specifically, the drainage openings 6 are arranged between the plurality of connected pedestrian bricks 3, so that the rainwater flowing along the curved surface of the pedestrian bricks 3 is collected in the drainage openings 6, and the first partition 61 is arranged on the drainage openings 6 for protection.
[0032] Further, the drainage openings 6 are fixedly connected with drainage pipes 62, and one end of the drainage pipes 62 extends into the main drainage groove 5.
[0033] Specifically, the drainage pipes 62 fixedly connected with the drainage openings 6 extend into the main drainage groove 5, so that the water collected in the drainage openings 6 is drained into the sewer by the main drainage groove 5.
[0034] Further, the main drainage groove 5 is provided with a water leakage mesh 52 on one side of the gravel layer 2, and a second partition 51 is arranged on the main drainage groove 5.
[0035] Specifically, the water leakage mesh 52 is arranged on the main drainage groove 5, so that the rainwater permeating along the gravel layer 2 is collected in the main drainage groove 5 through the water leakage mesh 52, and the second partition 51 is arranged on the main drainage groove 5 for protection.
[0036] Further, the gravel layer 2 on both sides of the asphalt layer 21, the broken brick layer 11 and the cement layer 12 is arranged on the foundation layer 1.
[0037] Specifically, as shown in Figure 1 and Figure 3 the gravel layer 2 is arranged on the foundation layer 1, so that the rainwater permeating in the gravel layer 2 is drained into the foundation layer 1 along the gravel layer 2.
[0038] Further, the pedestrian brick 3 is a water permeable brick.
[0039] Specifically, the water permeable brick is arranged, so that the rainwater is permeated and drained into the gravel layer 2 for further permeation and drainage into the foundation layer 1 or the main drainage groove 5.
[0040] Further, the asphalt layer 21 is a water permeable asphalt.
[0041] Further, the main drainage groove 5 is a stainless steel drainage groove.
[0042] Working principle: by laying the gravel layer 2 and the asphalt layer 21 on the original cement layer 12, when the rain falls on the asphalt layer 21, part of the rain is infiltrated, and the rain is drained along the two sides of the cement layer 12 through the infiltration of the gravel layer 2, and the rain on the asphalt layer 21 is drained to the two sides and flows into the main drainage tank 5 through the gravel layer 2 on the two sides of the asphalt layer 21, thereby guiding the rain to flow into the main drainage tank 5 without damaging the original cement layer 12, thereby improving the drainage effect of the rain and reducing the problem that the rain is difficult to drain on the asphalt layer 21, and the rain along the asphalt layer 21 is drained to the pedestrian brick 3, and the rain is guided to flow into the drain 6 under the cooperation of the plurality of curved surfaces, and then enters the main drainage tank 5 for drainage. The rain infiltrated in the gravel layer 2 is partially infiltrated into the foundation layer 1, and the other part is infiltrated into the main drainage tank 5 through the water leakage mesh hole 52 for collection.
[0043] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.
Claims
1. A self-draining structure of asphalt pavement, comprising a foundation layer (1) and a brick layer (11) and a cement layer (12) arranged in sequence thereon, characterized in that, The cement layer (12) is further provided with a gravel layer (2) and an asphalt layer (21) laid on the gravel layer (2), the gravel layer (2) extends out of both sides of the asphalt layer (21), the brick layer (11) and the cement layer (12), and the gravel layer (2) is provided with a main drainage groove (5) on each side.
2. The self-draining asphalt pavement structure of claim 1, wherein, The gravel layer (2) is provided with a plurality of pedestrian bricks (3) on both sides of the asphalt layer (21), and the pedestrian bricks (3) are provided with curb plates (4) on the side opposite to the asphalt layer (21).
3. The self-draining asphalt pavement structure of claim 2, wherein, The top of the pedestrian brick (3) is provided with a curved surface, and the curved surfaces of the plurality of pedestrian bricks (3) are spliced with each other.
4. The self-draining asphalt pavement structure of claim 3, wherein, A plurality of drainage openings (6) are distributed at equal intervals between the plurality of pedestrian bricks (3), and the drainage openings (6) are covered with first partitions (61).
5. The self-draining asphalt pavement structure of claim 4, wherein, The drainage openings (6) are fixedly connected with drainage pipes (62), and one end of the drainage pipes (62) extends into the main drainage groove (5).
6. The self-draining asphalt pavement structure of claim 1, wherein, The main drainage groove (5) is provided with water leakage mesh holes (52) on one side of the gravel layer (2), and the main drainage groove (5) is covered with second partitions (51).
7. The self-draining asphalt pavement structure of claim 1, wherein, The gravel layer (2) on both sides of the asphalt layer (21), the brick layer (11) and the cement layer (12) is laid on the foundation layer (1).
8. The self-draining asphalt pavement structure of claim 3, wherein, The pedestrian brick (3) is a water permeable brick.
9. The self-draining asphalt pavement structure of claim 1, wherein, The asphalt layer (21) is water permeable asphalt.
10. The self-draining asphalt pavement structure of claim 1, wherein, The main drainage groove (5) is a stainless steel drainage groove.